Design of a S-shape middle-ear ossicular replacement prosthesis and its comparison with present-day prostheses using finite element modelling

Seivur, Sundaram; Rathnakara, Subhodha Hosagadde; Ananthasuresh, G. K.

doi:10.1007/s12046-022-02000-3

Cited by 1 publication

(1 citation statement)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the ossicular chain reconstruction, an artificial ossicle (AO) is installed into the middle ear. The prognosis of hearing recovery is affected by AO variations, including the material characteristics ( Jahnke and Plester, 1981 ; Grote et al, 1986 ; Beutner and Hüttenbrink, 2011 ; Shah et al, 2013 ; Jiang et al, 2017 ; Lahlou et al, 2018 ; Siddappa et al, 2019 ); mounting method ( Fleischer, 1991 ); and the shapes of specific geometries, such as the S-shaped prosthesis ( Seivur et al, 2022 ), ball-type structure ( Stoppe et al, 2017 ; Ren et al, 2020 ), C-shaped Shape memory alloys (SMA) prosthesis ( Latalski et al, 2017 ), the partial ossicular replacement prosthesis (PORP), and the total ossicular replacement prosthesis (TORP) ( Kelly et al, 2003 ). It has been found that some of these materials with low biocompatibility tend to be rejected by the body when they are placed in the middle ear.…”

Section: Introductionmentioning

confidence: 99%

Mechanical effect of reconstructed shapes of autologous ossicles on middle ear acoustic transmission

Asakura

Ito

Hirabayashi

et al. 2023

Front. Bioeng. Biotechnol.

View full text Add to dashboard Cite

Conductive hearing loss is caused by a variety of defects, such as chronic otitis media, osteosclerosis, and malformation of the ossicles. In such cases, the defective bones of the middle ear are often surgically reconstructed using artificial ossicles to increase the hearing ability. However, in some cases, the surgical procedure does not result in increased hearing, especially in a difficult case, for example, when only the footplate of the stapes remains and all of the other bones are destroyed. Herein, the appropriate shapes of the reconstructed autologous ossicles, which are suitable for various types of middle-ear defects, can be determined by adopting an updating calculation based on a method that combines numerical prediction of the vibroacoustic transmission and optimization. In this study, the vibroacoustic transmission characteristics were calculated for bone models of the human middle ear by using the finite element method (FEM), after which Bayesian optimization (BO) was applied. The effect of the shape of artificial autologous ossicles on the acoustic transmission characteristics of the middle ear was investigated with the combined FEM and BO method. The results suggested that the volume of the artificial autologous ossicles especially has a great influence on the numerically obtained hearing levels.

show abstract